(______)1.你点着一个秋千,你说:It's a swing.
(______)2.想知道滑滑板的颜色,你问:What colour is the slide?
(______)3.告诉朋友,你看见了一个跷跷板,你说:I can see a seesaw.
(______)4.想知道朋友有多少个滑滑板,你问:How many swings?
(______)5.你的跷跷板是蓝色的,你说:My seesaw is green.

同类型试题

y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2


y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2

